Btrfs: sparse lock verification annotations for wait_on_state

Signed-off-by: Chris Mason <chris.mason@oracle.com>

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 87dba8517935d2516ee0745b4215a1bd16a32e5c..d79ccdbfdd954b53fc992481e672ef05f6818504 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -577,6 +577,8 @@ EXPORT_SYMBOL(clear_extent_bit);
 
 static int wait_on_state(struct extent_io_tree *tree,
                         struct extent_state *state)
+               __releases(tree->lock)
+               __acquires(tree->lock)
 {
        DEFINE_WAIT(wait);
        prepare_to_wait(&state->wq, &wait, TASK_UNINTERRUPTIBLE);